Fishing and water recreation draw visitors to Horsethief Reservoir Campground, situated at 5,000 feet elevation east of Cascade along Warm Lake Road. The campground operates under Idaho Department of Fish and Game management and features approximately 115 sites across five loops around the north and northwest shores of the reservoir. Most sites received renovations in 2022, with paved access roads and gravel parking areas replacing the previous primitive layout.
The reservoir allows motorized boats but enforces a no-wake policy, limiting vessels to trolling speed. Multiple reviewers confirm strong fishing opportunities, with the lake regularly stocked with trout. Mike E. notes the campground has "NO water/electric/sewer or dump stations or garbage," requiring campers to pack out all waste. Most sites include metal picnic tables and designated fire rings, with many positioned close to the water's edge.
The campground operates on a first-come, first-served basis with no reservations accepted. Sites fill quickly during weekends, particularly in summer months. Access requires driving several miles on a dusty dirt road, and reviewers mention wildlife sightings including waterfowl and bald eagles around the reservoir.
For additional camping choices in the region, campers can explore places to camp around Cascade. The $20 nightly fee covers basic amenities including vault toilets and the ability to have campfires and pets.
Description
Horsethief Reservoir Campground (HRC) is owned by the State of Idaho, under the auspices of the Idaho Department of Fish and Game (IDFG). IDFG and the Treasure Valley Family YMCA (YMCA) formed a partnership whereby the YMCA manages the campsites at the HRC and the IDFG manages the facilities, reservoir, wildlife and all real property. The YMCA manages the campsites under the rules and regulations as specified by the IDFG and participates with the IDFG in determining best campground practices and campground operational issues. Campground Host(s) are jointly selected by the IDFG and YMCA, and managed by the YMCA on behalf of the IDFG.
Horsethief Reservoir is located approximately 75 miles north of Boise and 9 miles east of Cascade, Idaho. This 260-acre, IDFG-owned and operated reservoir is surrounded by pine forests and granite-capped mountains. These lands are relatively undeveloped, offering very scenic views with little noise or distractions. The reservoir is managed as a trout fishery and is owned by the State of Idaho, and all but the southern shoreline is accessible for walk-in fishing. Much of the east side of the reservoir (outside the 30 foot strip owned by the State of Idaho) is privately owned - please respect private property. There are also boat-launching facilities for small fishing boats on both the east and west sides of the reservoir. The entire shoreline of the reservoir is shared by a small summer home development and the Treasure Valley Family YMCA Camp.
The public campground area has a semi-primitive nature with no electrical hookups, pressurized water, or sewer hooks-ups for public use campsites. Cell coverage may vary depending on your wireless provider.
The nearby community of Cascade offers a wide variety of services: laundromat, groceries, restaurants, auto mechanics, barbers, and clothing shops.
Campers and Day Use Visitors must "pack out" all garbage. The campground does not provide trash collection points. Fire rings must be fully doused and any unburned wood removed from the campsite. Current "extreme fire conditions" pertain for the entire Campground property with the exception of the campsite fire rings.
RV Road Trip Guides
Location
Public CampgroundHorsethief Reservoir Campground is located in Idaho
Directions
From State Hwy 55 north of Cascade, turn east on the Warm Lake Highway. In 6 miles turn south on Horsethief Reservoir Rd and go 3 miles to the reservoir.
Coordinates
44.51199572 N
115.91936697 W
Connectivity
- T-MobileNo CoverageVerified by 1 userLast on 5/1/26
- VerizonLTESome CoverageVerified by 5 usersLast on 2/24/26
- AT&TLTESome CoverageVerified by 1 userLast on 5/1/26
Connectivity
- T-MobileNo CoverageVerified by 1 userLast on 5/1/26
- VerizonLTESome CoverageVerified by 5 usersLast on 2/24/26
- AT&TLTESome CoverageVerified by 1 userLast on 5/1/26
Access
- Drive-InPark next to your site
- Boat-InSites accessible by watercraft.
Site Types
- Tent Sites
- RV Sites
- Standard (Tent/RV)
- Group
Features
For Campers
- ADA Access
- Picnic Table
- Phone Service
- Toilets
- Alcohol
- Pets
- Fires
Drive Time
- 1 hr 41 min from Boise, ID
- 3 hrs 19 min from Lewiston, ID
- 3 hrs 24 min from Twin Falls, ID
- 5 hrs 6 min from Walla Walla, WA













